Missing functions from the image package

[Alasdair McAndrew]

When I enter "pkg describe -verbose image" I obtain a long list of functions, some of which actually don't exist.  They are:

imfinfo
imapprox
rgb2ycbcr
dither
roifill
roifilt2

What has happened to these functions - were they once in the package but have been removed in the latest release?  And if so, is there any way I can obtain them?

Thanks,
Alasdair

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